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Method and apparatus for transmitting and receiving signal in communication system supporting unlicensed band

a communication system and unlicensed technology, applied in the direction of electrical equipment, network planning, wireless communication, etc., to achieve the effect of improving the performance of the communication system and efficient use of radio resources

Inactive Publication Date: 2020-09-24
ELECTRONICS & TELECOMM RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent allows a terminal to share its channel occupancy time with a base station. This means that the base station can control communication within the shared time frame, instead of the terminal. This improves the efficiency of radio resource usage and performance of the communication system.

Problems solved by technology

However, an initial access procedure, a signal transmission procedure, a channel access scheme suitable for a flexible frame structure, a wideband carrier operation, and the like in unlicensed bands are not yet clearly defined.

Method used

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  • Method and apparatus for transmitting and receiving signal in communication system supporting unlicensed band
  • Method and apparatus for transmitting and receiving signal in communication system supporting unlicensed band
  • Method and apparatus for transmitting and receiving signal in communication system supporting unlicensed band

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Embodiment Construction

[0047]Embodiments of the present disclosure are disclosed herein. However, specific structural and functional details disclosed herein are merely representative for purposes of describing embodiments of the present disclosure. Thus, embodiments of the present disclosure may be embodied in many alternate forms and should not be construed as limited to embodiments of the present disclosure set forth herein.

[0048]Accordingly, while the present disclosure is capable of various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It should be understood, however, that there is no intent to limit the present disclosure to the particular forms disclosed, but on the contrary, the present disclosure is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the present disclosure. Like numbers refer to like elements throughout the description of the figure...

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Abstract

Disclosed are methods and apparatuses for transmitting and receiving signals in a communication system supporting unlicensed bands. An operation method of a terminal may comprise acquiring a time period for occupying a channel by performing a sensing operation on the channel; transmitting a first uplink signal to a base station in a first uplink period within the time period; receiving DCI from the base station in a downlink period within the time period, the DCI including an uplink grant; and transmitting a second uplink signal to the base station in a second uplink period indicated by the uplink grant within the time period. Thus, performance of the communication system can be improved.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims priority to Korean Patent Applications No. 10-2019-0032829 filed on Mar. 22, 2019 and No. 10-2020-0029391 filed on Mar. 10, 2020 with the Korean Intellectual Property Office (KIPO), the entire contents of which are hereby incorporated by reference.BACKGROUND1. Technical Field[0002]The present disclosure relates generally to techniques for transmitting and receiving signals in a communication system, and more specifically, to techniques for accessing a channel and transmitting / receiving signals in a communication system supporting unlicensed bands.2. Related Art[0003]The communication system (hereinafter, a new radio (NR) communication system) using a higher frequency band (e.g., a frequency band of 6 GHz or higher) than a frequency band (e.g., a frequency band lower below 6 GHz) of the long term evolution (LTE) (or, LTE-A) is being considered for processing of soaring wireless data. The NR communication system may ...

Claims

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Application Information

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IPC IPC(8): H04W74/08H04W16/14H04W72/12
CPCH04W16/14H04W72/1289H04W74/0808H04W72/1268H04W72/23
Inventor MOON, SUNG HYUNKIM, CHEUL SOONLEE, JUNG HOON
Owner ELECTRONICS & TELECOMM RES INST